Seq # 250120090

Depressaria olerella Zeller, 1854 Species

Last modified: March 23, 2024, 10:08 a.m.

A very local and very rare species in Belgium. Only known from some old records from the southern parts of the country. Can be confused with Depressaria albipunctella.


Family: Depressariidae > Subfamily: Depressariinae > Genus: Depressaria > Species: Depressaria olerella
Vernacular names
Duizendbladplatlijfje (NL)
First mention in Belgium
Janmoulle E. 1949a. Remarques sur la faune belge (suite). — Lambillionea 49: 19–20. On page 19.




Museum specimens

Specimens in nature

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Olive green; head capsule and prothoracic plate black; pinacula pale green, slightly ringed black.

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A very loose spinning; pupa brown.

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The caterpillar spins a loose web in the terminal shoots of the foodplant, turning the leaflet sides upwards until they form a tube. One larva makes several such spinnings during its development. The larva consumes the leaflets under the spinnings; June–July.
Pupation in a loose silken cocoon in the soil or among detritus; July–August.
The species hibernates in the adult stage. It hides during the day and is seldom seen. The adults are active at night and come occasionally to light, especially after hibernation.

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Flight periods

One generation a year: from August and after hibernation in March–April.

Observed on

Host plant (species):
Achillea millefolium

Monophagous on Achillea millefolium.

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Sandy places, heathland with much grass and where the foodplants grows abundantly.

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